EXCLUSIVE: Management 360’s Evelyn O’Neill tells me it’s a “very amicable parting” and she hopes he comes back since she and Jake Gyllenhaal go back such a long time — 8 years. “Sometimes people like change in their life. I think he’s amazing, I’m very proud of the work he did together, he was nominated for an Oscar, I want him back, and the door is always open. It is what it is.” I understand Gyllenhaal is not leaving for another manager and he’s not leaving his talent agency CAA. I have a feeling this may be the start of a trend as the movie biz is so muddled with the box office slump that stars who can’t put people in theater seats will see projects falling apart one after another. Rough sledding for the rep business.